DMHA (also known as dimethylhexylamine and other names) is a stimulant developed in the 1950s for use as an inhalant to treat bronchitis, laryngitis, and other conditions. It was never approved for oral use, but in recent years it has shown up as an ingredient in dietary supplements. It is used most often in supplements marketed as thermogenics (fat burners) and pre-workouts because of its supposed benefits as an appetite suppressant and energy enhancer. It’s also been claimed to enhance focus, memory, and attention; increase pain threshold; and decrease rates of perceived exertion.

However, there hasn’t been enough research on DMHA to determine if it’s safe or effective, and some animal studies suggest it might have adverse cardiovascular (related to the heart and/or blood vessels) effects. In addition, the same concerns associated with other stimulants apply to DMHA.

FDA announced in April 2019 that DMHA (also known by the trade name octodrine) is either a “new dietary ingredient” for which the FDA has not received the required New Dietary Ingredient notification or…an unsafe food additive.” This means that DMHA should not be used as an ingredient in dietary supplements. Because of this, DMHA is on the OPSS list of DoD-prohibited ingredients.

DMHA is still present as an ingredient in some dietary supplements, so be sure to look carefully at the Supplement Facts panel of any product you’re considering. DMHA goes by many other names, including:

  • 1,5-dimethylhexylamine
  • 1,5-DMHA
  • 2-amino-5-methylheptane
  • 2-amino-6-methylheptane
  • 2-aminoisoheptane
  • 2-heptylamine, 6-methyl-
  • 2-isooctyl amine
  • 2-metil-6-amino-eptano
  • 6-amino-2-methylheptane
  • 6-methyl-2-heptylamine
  • 6-methyl-2-heptanamine
  • Amidrine
  • dimethylhexylamine
  • isoctaminum
  • Octodrine
  • Vaporpac

Some marketing claims have represented DMHA as a “natural” extract of aconite, Aconitum kusnezoffii, Juglans regia, or Kigelia Africana. However, if a plant-based ingredient on a label includes a statement that it provides DMHA, it has not been approved for use in dietary supplements.

For more information, please see FDA’s “DMHA in Dietary Supplements.”

Updated 17 June 2019

References

Catalani, V., Prilutskaya, M., Al-Imam, A., Marrinan, S., Elgharably, Y., Zloh, M., . . . Corazza, O. (2018). Octodrine: New questions and challenges in sport supplements. Brain Sciences, 8(2), Art. E34. doi:10.3390/brainsci8020034

Cohen, P. A., Travis, J. C., Keizers, P. H. J., Deuster, P., & Venhuis, B. J. (2017). Four experimental stimulants found in sports and weight loss supplements: 2-amino-6-methylheptane (octodrine), 1,4-dimethylamylamine (1,4-DMAA), 1,3-dimethylamylamine (1,3-DMAA) and 1,3-dimethylbutylamine (1,3-DMBA). Clinical Toxicology, 56(6), 421–426. doi:10.1080/15563650.2017.1398328

National Center for Biotechnology Information. PubChem Database: Octodrine, CID=10982.   Retrieved 29 May 2019 from https://pubchem.ncbi.nlm.nih.gov/compound/Octodrine

U.S. Food & Drug Administration. (2019). DMHA in dietary supplements.   Retrieved 30 May 2019 from https://www.fda.gov/food/dietary-supplement-products-ingredients/dmha-dietary-supplements

Wang, M., Haider, S., Chittiboyina, A. G., Parcher, J. F., & Khan, I. A. (2018). 1,5-Dimethylhexylamine (octodrine) in sports and weight loss supplements: Natural constituent or synthetic chemical? Journal of Pharmaceutical and Biomedical Analysis, 152, 298–305. doi:10.1016/j.jpba.2018.02.008